Social determinants of denture/bridge use: Japan gerontological evaluation study project cross-sectional study in older Japanese

Tatsuo Yamamoto, Katsunori Kondo, Jun Aida, Kayo Suzuki, Jimpei Misawa, Miyo Nakade, Shinya Fuchida, Yukio Hirata

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Background: Studies suggest that using a denture/bridge may prevent disability in older people. However, not all older people with few remaining teeth use a denture/bridge. This cross-sectional study aimed to examine the social determinants which promote denture/bridge use among older Japanese.Methods: A total of 54,388 (25,630 males and 28,758 females) community-dwelling individuals aged 65 or over, living independently, able to perform daily activities, and with 19 or fewer teeth. The dependent variable was denture/bridge use. Socio-demographics, number of teeth, present illness, social participation, social support, and social networks were used as individual-level independent variables. Data for social capital were aggregated and used as local district (n = 561 for males, n = 562 for females) -level independent variables. Number of dentists working in hospitals/clinics per population and population density were used as municipality (n = 28) -level independent variables. Three-level multilevel Poisson regression analysis was performed for each sex.Results: High equivalent income, low number of teeth, present illness, and living in a municipality with high population density were significantly associated with denture/bridge use in both sexes in the fully adjusted models (p < 0.05). Denture/bridge use was significantly associated with high educational attainment in males and participating in social groups in females in the fully adjusted model (p < 0.05). No significant associations were observed between denture/bridge use and social capital.Conclusions: Denture/bridge use was significantly associated with high economic status and present illness in both sexes, high educational attainment in males, and participation in social groups in females among community-dwelling older Japanese after adjusting for possible confounders.

Original languageEnglish
Article number63
JournalBMC Oral Health
Volume14
Issue number1
DOIs
Publication statusPublished - 2014 Jun 3

Keywords

  • Cross-sectional study
  • Dental prosthesis
  • Older people
  • Social determinants

ASJC Scopus subject areas

  • Dentistry(all)

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